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MOSFET: Enhancement Mode

MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...

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Updated: Jan 13, 2026

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

Published on: August 28, 2018

晶圆尺度带隙调节式MoS₂/PbS光电晶体管通过解决方案处理实现.

Ziheng Tang¹, Chengqian Cui², Xiaoli Jing³

¹Department of Mechanical Engineering, Tsinghua University, Beijing, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|January 12, 2026

概括

我们使用等离子处理开发了晶圆尺度,带隙调节二硫化物 (MoS₂) /硫化 (PbS) 光传感器. 这一突破使得可调节的光吸收能够用于先进的光电子.

关键词:

带隙工程带隙工程不同结构的异构结构.低维电子产品低维电子产品光电晶体管的光电晶体管解决方案-处理处理

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Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication

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Published on: November 28, 2017

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Last Updated: Jan 13, 2026

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

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Published on: November 28, 2017

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
光电学是指光电子产品.

背景情况:

二硫化物 (MoS₂) /硫化 (PbS) 异构结构提供强烈的光物质相互作用和高载体流动性.
带隙工程对于优化下一代光晶体管的光吸收至关重要.
由于垂直合,MoS₂/PbS异质连接的传统制造方法限制了带隙调性.

研究的目的:

为了实现晶圆尺度,带隙调节的MoS₂/PbS光电晶体管.
为了研究带隙调能力的垂直和横向MoS₂/PbS异质连接的带结构.
在MoS₂/PbS异质连接制造中实现晶圆尺度统一性和可扩展性.

主要方法:

从初始计算来研究垂直和横向MoS₂/PbS异质连接的带结构.
研究等离子处理以调节薄膜表面能量以改善制造.
在4英寸晶圆尺度上制造MoS₂/PbS光电晶体.

主要成果:

通过调整II型频段对齐,发现侧向异面连接占据了带隙调整能力的优势.
等离子处理使MoS₂/PbS异质连接制造能够缩放到4英寸晶圆尺度,产量为97%.
从1.24 eV到0.61 eV实现了带隙调整性,光电晶体管显示出高响应度 (88 A/W),检测能力 (4.77 × 10 ¹² 斯) 和开/关比 (3.16 × 10 ⁷).

结论:

横向的MoS₂/PbS异质连接是实现可调节带隙的关键.
等离子处理是一种有效的方法,用于晶圆尺度制造均的MoS₂/PbS异质连接.
这项工作为开发晶圆尺度,带隙调节的光电子设备提供了途径.